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Preparation method of automobile filter paper emulsion

A technology of emulsion and filter paper, which is applied in the field of preparation of automobile filter paper emulsion, can solve the problems that cannot meet the requirements of filter element production, processing and use, and low strength, and achieve excellent emulsification performance, high cross-linking degree, and good chemical and mechanical properties. Effect

Active Publication Date: 2018-04-06
ZHEJIANG JIUBEN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base paper of filter paper is mostly made of plant fibers, the paper itself is loose, soft, and low in strength, which cannot meet the requirements of the production, processing and use of filter elements, so the base paper must be strengthened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] To 80g of isopropanol solution, at a stirring speed of 300r / min, add 8g of a mixture of ethyl acrylate, n-butyl acrylate and isooctyl acrylate, 8g of a mixture of AMPS and sodium allyl sulfonate, acrylic acid Mix 4g of hydroxyethyl ester and hydroxypropyl methacrylate, adjust the temperature to 80°C, add a mass of 0.1% azobisisoheptanonitrile to the total amount of monomers, keep warm for 120min, and the preparation is completed. Evaporate the solvent and make a 10% aqueous solution; use the first step to prepare 20 g of a polymer emulsifier aqueous solution, heat up to 90 ° C, and dropwise add 98.03 g of a mixture of styrene, acrylic acid, n-butyl acrylate and methyl methacrylate ; Mixture 1.87g of silane coupling agent KH-570 and SG-SI171 and the ammonium persulfate initiator accounting for 0.05% of the total monomer amount, dropwise reaction 180min, dropwise completion of insulation reaction 30min, insulation completion, cooling to 60 ℃, add ammonium persulfate-sodiu...

Embodiment 2

[0019] To 80g of isopropanol solution, at a stirring speed of 200r / min, add 6g of mixture of isooctyl acrylate, n-butyl acrylate and lauryl acrylate, AMPS, sodium styrene sulfonate and sodium allyl sulfonate 12g of the mixture, 2g of the mixture of hydroxyethyl acrylate and hydroxyethyl methacrylate, adjust the temperature to 70°C, add 0.3% azobicyclohexylcarbonitrile with a mass of total monomer content, keep the reaction for 300min, and the preparation is completed , evaporate the solvent under high temperature and high vacuum conditions, and make a 10% aqueous solution; use the first step to prepare 100g of polymer emulsifier aqueous solution, heat up to 80°C, add methyl methacrylate, ethyl methacrylate, propylene dropwise A mixture of nitrile, lauryl acrylate, 2-ethylhexyl acrylate, lauryl methacrylate and n-octyl methacrylate 46.3g; a mixture of methylol acrylamide and silane coupling agent KH-570 3.7 g and sodium persulfate initiator accounting for 0.3% of the total mono...

Embodiment 3

[0021] In 80g of isopropanol solution, at a stirring speed of 100r / min, add 6g of the mixture of ethyl acrylate and n-butyl acrylate, 8g of the mixture of AMPS and sodium allyl sulfonate, 6g of hydroxyethyl acrylate, Adjust the temperature to 90°C, add 0.5% dimethyl azobisisobutyrate with a mass of 0.5% of the total monomer amount, and keep the temperature for 240 minutes. After the preparation is completed, the solvent is distilled off under high temperature and high vacuum conditions to form a 10% aqueous solution; The first step is to prepare 150 g of polymer emulsifier aqueous solution, raise the temperature to 80 ° C, dropwise add a mixture of styrene, methyl methacrylate, acrylonitrile, butyl acrylate, lauryl acrylate and 2-ethylhexyl acrylate 45.5 g, 4.5g of the mixture of methylol acrylamide and silane coupling agent SG-SI151 and potassium persulfate initiator accounting for 0.1% of the total monomer amount, dropwise reaction for 180min, the dropwise addition is complet...

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Abstract

The invention relates to a preparation method of an automobile filter paper emulsion. The method includes the steps that firstly, a polymeric emulsifier is prepared, wherein a mixture of soft monomers, water-soluble dispersing monomers and water-soluble crosslinking monomers is added into an isopropanol solvent at the stirring speed of 200-1000 r / min, the temperature is adjusted to be 50-90 DEG C,an oil-soluble initiator accounting for 0.1%-0.5% of the total monomer mass is added, a heat-preserved reaction is carried out for 120-300 min, preparation is completed, the solvent is distilled offunder high-temperature and vacuum conditions, and a 10% aqueous solution is prepared; secondly, the polymeric emulsifier aqueous solution prepared in the first step is heated to 70-90 DEG C, and two types of blending monomers and an aqueous initiator are dropwise added; thirdly, after the reaction is finished, the temperature is decreased to 60-70 DEG C, a redox system is added into the system tocarry out monomer removal, then the pH value is adjusted, and finally filtration is carried out for discharging. The emulsion has the advantages of being small in particle size, good in chemical and mechanical property, excellent in emulsifying property and film-forming property, high in crosslinking degree and the like, and the waterproof property and mechanical strength after film formation of the filter paper emulsion are greatly improved.

Description

technical field [0001] The invention relates to a preparation method of automobile filter paper emulsion Background technique [0002] Automobile industry filter paper is a special industrial technical paper. It is the general name of air filter paper, oil filter paper and fuel filter paper. It is commonly known as three filter paper. , engine oil, and fuel impurities to prevent wear and tear of parts and prolong service life. The base paper of filter paper is mostly made of vegetable fibers. The paper itself is loose, soft, and low in strength, which cannot meet the requirements of the production, processing and use of filter elements. Therefore, the base paper must be strengthened. After the base paper is treated, it can make the filter paper have higher chemical resistance and solvent resistance, and improve its physical strength and structural strength. [0003] The impregnation treatment of automobile filter paper is mainly carried out with emulsion. At present, my c...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/06C08F220/18C08F220/14C08F230/08C08F228/02C08F220/20C08F220/58C08F220/44
CPCC08F212/08C08F220/14C08F230/08C08F220/1808C08F220/1804C08F228/02C08F220/20C08F220/58C08F220/18C08F220/44C08F220/1812C08F220/1802C08F220/06
Inventor 郑刚
Owner ZHEJIANG JIUBEN BIOCHEM
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